public static MessageListenerFilterRegistrationResult Register(Action <WindowMessageEventArgs> callback)
{
lock (_registerLock)
{
uint message = 0;
RegisteredListener package = _packages.FirstOrDefault(x => x.TryRegister(callback, out message));
if (package == null)
{
package = new RegisteredListener();
if (!package.TryRegister(callback, out message))
{
// this should never happen
throw new ShellException(LocalizedMessages.MessageListenerFilterUnableToRegister);
}
_packages.Add(package);
}
return(new MessageListenerFilterRegistrationResult(
package.Listener.WindowHandle,
message));
}
}
public static MessageListenerFilterRegistrationResult Register(Action<WindowMessageEventArgs> callback) {
lock (_registerLock) {
uint message = 0;
var package = _packages.FirstOrDefault(x => x.TryRegister(callback, out message));
if (package == null) {
package = new RegisteredListener();
if (!package.TryRegister(callback, out message)) { // this should never happen
throw new ShellException(LocalizedMessages.MessageListenerFilterUnableToRegister);
}
_packages.Add(package);
}
return new MessageListenerFilterRegistrationResult(
package.Listener.WindowHandle,
message);
}
}
